diff --git a/config.tests/arch/arch.cpp b/config.tests/arch/arch.cpp
index 1a96fb982f1..b1ec3d7111f 100644
--- a/config.tests/arch/arch.cpp
+++ b/config.tests/arch/arch.cpp
@@ -40,6 +40,7 @@
 ****************************************************************************/
 
 // NOTE: This file is not meant to be compiled, only preprocessed.
+#define QGLOBAL_H
 #include "../../src/corelib/global/qprocessordetection.h"
 #undef alpha
 #undef arm
diff --git a/src/corelib/global/qcompilerdetection.h b/src/corelib/global/qcompilerdetection.h
index 67baf42f8bb..e1563b06450 100644
--- a/src/corelib/global/qcompilerdetection.h
+++ b/src/corelib/global/qcompilerdetection.h
@@ -40,6 +40,10 @@
 **
 ****************************************************************************/
 
+#ifndef QGLOBAL_H
+# include <QtCore/qglobal.h>
+#endif
+
 #ifndef QCOMPILERDETECTION_H
 #define QCOMPILERDETECTION_H
 
diff --git a/src/corelib/global/qprocessordetection.h b/src/corelib/global/qprocessordetection.h
index 04e0f19f06a..109545c10ec 100644
--- a/src/corelib/global/qprocessordetection.h
+++ b/src/corelib/global/qprocessordetection.h
@@ -39,6 +39,10 @@
 **
 ****************************************************************************/
 
+#ifndef QGLOBAL_H
+# include <QtCore/qglobal.h>
+#endif
+
 #ifndef QPROCESSORDETECTION_H
 #define QPROCESSORDETECTION_H
 
diff --git a/src/corelib/global/qsystemdetection.h b/src/corelib/global/qsystemdetection.h
index db5775d0214..94ff42a789f 100644
--- a/src/corelib/global/qsystemdetection.h
+++ b/src/corelib/global/qsystemdetection.h
@@ -39,6 +39,10 @@
 **
 ****************************************************************************/
 
+#ifndef QGLOBAL_H
+# include <QtCore/qglobal.h>
+#endif
+
 #ifndef QSYSTEMDETECTION_H
 #define QSYSTEMDETECTION_H